JPH0447626Y2 - - Google Patents

Info

Publication number

JPH0447626Y2

JPH0447626Y2 JP3254787U JP3254787U JPH0447626Y2 JP H0447626 Y2 JPH0447626 Y2 JP H0447626Y2 JP 3254787 U JP3254787 U JP 3254787U JP 3254787 U JP3254787 U JP 3254787U JP H0447626 Y2 JPH0447626 Y2 JP H0447626Y2

Authority

JP

Japan

Prior art keywords

liquid level

protective cover

float

level signal

stopper member

Prior art date

1987-03-04

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

• Espacenet
• Global Dossier
• Discuss

• 239000007788 liquid Substances 0.000 claims description 62
• 230000001681 protective effect Effects 0.000 claims description 33
• 238000006243 chemical reaction Methods 0.000 claims description 6
• 238000001514 detection method Methods 0.000 claims description 5
• 230000005540 biological transmission Effects 0.000 claims description 3
• 230000003287 optical effect Effects 0.000 claims description 3
• 239000000428 dust Substances 0.000 description 8
• 230000000694 effects Effects 0.000 description 6
• 230000002093 peripheral effect Effects 0.000 description 6
• 230000008901 benefit Effects 0.000 description 3
• 238000000034 method Methods 0.000 description 3
• 238000007789 sealing Methods 0.000 description 3
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
• 235000014676 Phragmites communis Nutrition 0.000 description 2
• 238000010586 diagram Methods 0.000 description 2
• 230000002265 prevention Effects 0.000 description 2
• 230000004043 responsiveness Effects 0.000 description 2
• 230000005856 abnormality Effects 0.000 description 1
• 230000009471 action Effects 0.000 description 1
• 230000003213 activating effect Effects 0.000 description 1
• 238000013459 approach Methods 0.000 description 1
• 238000011109 contamination Methods 0.000 description 1
• 238000006073 displacement reaction Methods 0.000 description 1
• 239000012530 fluid Substances 0.000 description 1
• 230000005484 gravity Effects 0.000 description 1
• 230000000415 inactivating effect Effects 0.000 description 1
• 238000009413 insulation Methods 0.000 description 1
• 230000000149 penetrating effect Effects 0.000 description 1
• 229920006327 polystyrene foam Polymers 0.000 description 1
• 230000008569 process Effects 0.000 description 1
• 230000004044 response Effects 0.000 description 1
• 238000000638 solvent extraction Methods 0.000 description 1
• 229920003002 synthetic resin Polymers 0.000 description 1
• 239000000057 synthetic resin Substances 0.000 description 1
• 238000003466 welding Methods 0.000 description 1